Was Pierre Charles L'Enfant in occult?

He was a military engineer and an architect, a specialist also in Maps. He was the principal architect of what is now known as Washington, DC. It is not known if he became a naturalized citizen. In some circles, his name was mis-spelled Longfont which suggests something to do with Printing. the name Charles L"enfant means Charles Child, Child here being a last name. As is obvious from the prenames, he was a Frenchman.